Steam turbine engines : their construction, care and operation (1910)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago : Frederick J. Drake · leaf 52
ntroduced a system of hydraulicaly operated valves forspeed regulation. These valves are also of the poppet type, and each isclosed by a helical spring in compression. In the closedposition they are held tight by steam pressure, againstwhich they are opened^ The valves on one machine are all The…
Steam-engines -- Design and construction · Steam-turbines -- Handbooks, manuals, etc
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